Hydroxy acid ester plasticized urethane elastomers

Details Hydroxy acid ester plasticized urethane elastomers Hydroxy acid ester plasticized urethane elastomers

1987-09-23

1988-08-23

Welsh, Maurice J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524317, 524759, 524760, 524769, 525454, 528 49, 528 745, 528 76, 528 77, 528 80, 528 81, C08L 7504

Patent

active

047661674

ABSTRACT:
A plasticized polyurethane elastomer prepared from the combination of a polyol and an isocyanate is disclosed wherein a sufficient amount of an alpha hydroxy acid ester of a hydroxy polyol plasticizer is incorporated in the elastomer to improve the physical properties of the elastomer. The plasticizing agent is represented by the formula

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